/*
3.33333
3.333333333
1234567890
0000000123
0x64  
 *
 */
#include <iostream>
#include <iomanip>
using namespace std;
int main(void){
	cout << 10/3.0 << endl;
	cout << setprecision(10) << 10/3.0 << endl;
	cout << setw(10) << 1234567890 << endl;
	cout << setw(10) << setfill('0') << 123 << endl;
	cout << setw(8) << left << setfill(' ') << hex << showbase << 100 << endl;
	return 0;
}
